Wrench



(No Model.)

'LE GRAND TERRY.

- WRENCH.

No. 595,796. Patented De0.21,189'7.

NITED STATES ATENT rrrcn.

LE GRAND TERRY, OF HORSEHEADS, NEW YORK.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 595,796, dated December21, 1897.

Application filed May 22, 1897. Serial No. 637,761. (No model.)

T0 at whom it ntcty concern.-

Be it known that I, LE GRAND TERRY, a resident of Horseheads, in thecounty of Chemung and State of New York, have invented certain new anduseful Improvements in renches; and I do hereby declare the following tobe a full, clear, and exactdescription of the invention, such as willenable others skilled in the art to whichit appertains to make and usethe same.

My invention relates to an improvement in wrenches, and moreparticularly to such as are adapted for use on pipes, but which may alsobe used on nuts, &c., the object of the invention being to provide awrench of simple construction by means of which a pipe or other devicecan be forcibly gripped with the expenditure of a minimum amount ofpower applied by the user.

A further object is to so construct a wrench that the shank of one jawwill be permitted to have a longitudinal sliding movement and also apivotal movement on a fulcrum located adjacent to the lower end of saidjaw.

A further object is to so construct a wrench of the character abovementioned which shall be comparatively cheap to manufacture and yet bestrong, durable, and effectual in all respects in the performance of itsfunctions.

lVith these objects in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts,ashereinafter set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a View illustrating myimproved wrench. Fig. 2 is a sectional view. Fig. 3 is a crosssection.Fig. 4 is a detail view of the washer. Fig. 5 is a modified form ofwasher.

A represents a bar the lower end of which is made to form a handle 1,and its upper end is made with a rigid serrated jaw 2, disposed at rightangles to said bar A. An elongated yoke B is disposed on thebarAimmediately below the jaw 2 for the accommodation of the shank 4 ofa movable jaw 5. The yoke B will preferably be made by bending a plateof sheet metal (preferably heavy sheet-steel) upon itself, so as to formtwo parallel members 6 6, adapted to embrace the bar A, the free edgesof said members 6 6 being rigidly secured to said bar by welding,riveting, or in any other suitable manner.

At a point between its ends the elongated yoke B is made with a mortiseor recess 7 for the accommodation of a nut 8, through which thescrew-threaded shank of the movable jaw 5 passes, and a loose washer 9,having shoulders 10 to rest on shoulders 11 in the mortise or recess '7.

If desired, the washer 9 may be provided with lugs 12, Fig. 4, to lieagainst the outer faces of the respective members of the yoke.

The hole in the washer 9 is made sufficiently larger than the diameterof the screwthreaded shank of the movable jaw so as to permit said shankto pass freely through it.

It will be observed that the space within the yoke B is elongated incross-section, so as to permit the movable jaw and its shank to havelateral play or movement, and said jaw will be maintained in its normalposition by means of a spring 13, secured at one end to the bar A withinthe yoke B, and bearing at its free end against the inner face 14 of theshank of the movable jaw.

From the construction and arrangement of parts above described it willbe seen that the movable jaw is adapted to be moved longitudinally ofthe wrench and to also have a pivotal or swinging movement in the washer9 as a fulcrum. The employment of this washer prevents the nut frombeing moved into contact with the wrench-handle.

My improvements are very simple in construction and are effectual, inall respects, in the performance of their functions.

Slight changes might be made in the details of construction of myinvention without departing from the spirit thereof or limiting itsscope, and hence I do not wish to limit myself to the precise detailsherein set forth.

Having fully described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1. In a wrench, the combination with a bar having a handle at one endand a fixed jaw at the other end, of a yoke on said bar for thereception of the shank of a movable jaw, said yoke having a mortise, amovable jaw having its shank projecting into said yoke, a nut in saidmortise through which the screwthreaded portion of said shank passes,and a washer also in said mortise and serving as'a fulcrum for saidshank, substantially as set forth.

2. In a wrench, the combination with a bar having a handle at one endand a fixed jaw at the other end, of a yoke between the ends of saidbar, said yoke being elongated in cross-section, and having a mortise ata point between its ends, a movable jaw having a shank projecting intosaid yoke and adapted to have a sliding and a lateralniovement therein,a nut in said mortise through which the screw threaded portion of theshank passes, a washer also in said mortise and serving as a fulcrum forsaid shank, and a spring secured to said bar and bearing against saidshank whereby to maintain the movable jaw in its normal position,substantially as set forth.

3. In a Wrench, the combination with a bar having a handle at one endand a fixed jaw at the other'end, of a yoke constructed by bendin g aplate of metal upon itself, the free edges of the respective members ofsaid yoke being secured to said bar in rear or above the fixed jaw, saidyoke having a mortise, a movable jaw having a shank to project into saidyoke and having a sliding and pivotal movement therein, a nut in saidmortise through which the screw threaded portion of said shank passes, awasher also mounted in said mortise and serving as a fulcrum for saidshank and a spring for maintaining said shank and jaw thereon, in theirnormal positions, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witness LE GRAND TERRY.

Vitnesses:

XVILLIAM PARK, FRANK PRENTIOE.

